wylder
Basic User
- City
- petaluma
- State
- ca
Hello fellow scramblers -
We were recently turned over to the Smog Gods of California, thanks to our sacreligious ownership of a "Gross Polluter Profile" '84 Scrambler
. Although we have passed the biannual Inquisition for the past eight years, this time the thumb screws were tightened down, and every inch of our Scrambler was inspected for potential heresy.
It turns out that the Smog Gods, speaking through the High Priests of the California BAR, have deemed it an Unholy Tampering & Modification to have a 4.0 head & headers on a 4.2 block. Evidently, the better performance, mileage, and lower emissions go against the original designs of the All Mighty Church.
To atone for this, we must now spend lots of money and show our good faith. Our penance is to bring all major parts into alignment, as AMC intended. So we can either:
A) replace our block with a 4.0
B) replace our 4.0 head and Edelbrock headers with sanctified 4.2 parts
Full engine swaps are so easy and glitch free, Wylder was going do it on his lunch hour. But we've grown very attached to our recently adopted Mopar 4.2 Fuel Injection Kit, and don't want to let it go to another family. So we're leaning towards B - this orthodoxy will be also be more acceptable to the Sacred Mysteries of the BAR Referee Station.
We've already picked out some cute Borla headers, but we're having a tough time finding a rebuilt head that is reasonably priced, has decent performance, and will definitely fit. Yes, Wylder could rebuild a salvaged one himself, but he's swamped these days, and the registration tithes are going to start piling up. As a dutiful helpmeet I am trying to smooth the way while he works.
Does anyone have any insights into recommended head vendors, and/or part numbers? There's a lot of junk out there on the interwebs. Does the head casting number REALLY make a difference? The retailers I've called keep asking - but we don't have the original head to refer to.
- A jeepsunlimited.com forum post says all 81-85 4.2.s are block #3235444 (I assume this includes all Scramblers) with head cast#s 3933000, 3224480, 3241656.
- ATK's catalog shows an 81-83 head (part 2A03) with center bolts, and an 83-85 head (part 2A26) with edge bolts.
- 4wd.com says that both parts fit cast#s 000, 480, & 656 - do we care about the difference? In the $400 price range, is there a better option?
thank you for your help in getting us back on the path to righteousness - your humble fellow sinner, Wylder's wife
'84 Scrambler 6 cyl, 5sp, Laredo; 4" lift, 33s (tire make varies about every six months
)
We were recently turned over to the Smog Gods of California, thanks to our sacreligious ownership of a "Gross Polluter Profile" '84 Scrambler
. Although we have passed the biannual Inquisition for the past eight years, this time the thumb screws were tightened down, and every inch of our Scrambler was inspected for potential heresy.It turns out that the Smog Gods, speaking through the High Priests of the California BAR, have deemed it an Unholy Tampering & Modification to have a 4.0 head & headers on a 4.2 block. Evidently, the better performance, mileage, and lower emissions go against the original designs of the All Mighty Church.
To atone for this, we must now spend lots of money and show our good faith. Our penance is to bring all major parts into alignment, as AMC intended. So we can either:
A) replace our block with a 4.0
B) replace our 4.0 head and Edelbrock headers with sanctified 4.2 parts
Full engine swaps are so easy and glitch free, Wylder was going do it on his lunch hour. But we've grown very attached to our recently adopted Mopar 4.2 Fuel Injection Kit, and don't want to let it go to another family. So we're leaning towards B - this orthodoxy will be also be more acceptable to the Sacred Mysteries of the BAR Referee Station.
We've already picked out some cute Borla headers, but we're having a tough time finding a rebuilt head that is reasonably priced, has decent performance, and will definitely fit. Yes, Wylder could rebuild a salvaged one himself, but he's swamped these days, and the registration tithes are going to start piling up. As a dutiful helpmeet I am trying to smooth the way while he works.
Does anyone have any insights into recommended head vendors, and/or part numbers? There's a lot of junk out there on the interwebs. Does the head casting number REALLY make a difference? The retailers I've called keep asking - but we don't have the original head to refer to.
- A jeepsunlimited.com forum post says all 81-85 4.2.s are block #3235444 (I assume this includes all Scramblers) with head cast#s 3933000, 3224480, 3241656.
- ATK's catalog shows an 81-83 head (part 2A03) with center bolts, and an 83-85 head (part 2A26) with edge bolts.
- 4wd.com says that both parts fit cast#s 000, 480, & 656 - do we care about the difference? In the $400 price range, is there a better option?
thank you for your help in getting us back on the path to righteousness - your humble fellow sinner, Wylder's wife
'84 Scrambler 6 cyl, 5sp, Laredo; 4" lift, 33s (tire make varies about every six months
)
